The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
∠ SSC CGL, CBSE 10
Trigonometry — formula, example and practice
Identities and heights-and-distances. Memorise the standard angles first.
Content type: original worked example. Not labelled as a previous-year question.
Timed GK/quant mock Shortcuts CBSE Class 10 Maths 150 questions
Formula
sin²θ + cos²θ = 1 · tanθ = sinθ/cosθ
Ratios of sides in a right triangle; later, identities without a triangle drawn.
What you should learn here
CBSE Class 10 and SSC CGL both ask identity proofs and a short height-distance numerical.
Worked example
Question. sin 30° = ?
Solution. 1/2. Also: sin 0=0, sin 90=1, cos 60=1/2, tan 45=1.
Common mistake. Using degree values as if they were radians, or swapping sin 30 and sin 60.
When to use the shortcut. Memorise 0–30–45–60–90 table before identities. Heights-and-distances need that table plus tan.
Related chapters and tests
Mensuration Statistics Percentage Ratio and Proportion All formulas SSC GD mocks SSC CGL mocks
150 important Trigonometry questions
Original arithmetic practice for this page. Not labelled as previous-year SSC/railway items. Tap an option to mark it. Open “Answer” for the working.
Score: 0 / 0
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
The value of tan 45° is
Answer / solution
Correct option: B
tan 45 = 1.
The value of tan 0° is
Answer / solution
Correct option: A
tan 0 = 0.
The value of sin 60° is
Answer / solution
Correct option: C
Standard angle.
The value of cos 30° is
Answer / solution
Correct option: B
Standard angle.
The value of sin²θ + cos²θ is
Answer / solution
Correct option: D
Fundamental identity.
The value of tan θ is
Answer / solution
Correct option: D
Definition.
The value of sin 30° is
Answer / solution
Correct option: D
Standard angle.
The value of sin 0° is
Answer / solution
Correct option: D
sin 0 = 0.
The value of sin 90° is
Answer / solution
Correct option: B
sin 90 = 1.
The value of cos 0° is
Answer / solution
Correct option: D
cos 0 = 1.
The value of cos 60° is
Answer / solution
Correct option: A
Standard angle.
The value of cos 90° is
Answer / solution
Correct option: D
cos 90 = 0.
FAQs
Are these previous-year SSC questions?
No year or shift is claimed on these pages. Each maths section has 150 original practice MCQs. When a verified source database exists, a question will show exam + year; until then it is practice.
Where are Class 10 board formulas?
The CBSE formula sheet at /cbse/class-10/mathematics/formulas/ stays the canonical board list. This maths hub links to it instead of copying every line.
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